Lubricator



(No Model.)

EL D. BANGS. LUBRIGATOR. No. 468,289. Patented Feb. 2, 1892.

UNITED STATES PATENT OFFICE.

EDVIN D. BANGS, OF MILW'AUKEE, WISCONSIN, ASSIGNOR OF THBEE-FIFTHS TOMANNING II. CASE, OF SAME PLACE, AND JOHN HARVEY CURTIS, OF

CHICAGO, ILLINOIS.

LUBRICATOR.

SPECIFICATION forming part of Letters Patent No. 468,289, dated February2, 1892.

V 7 Application filed November 25, 1889. Serial No. 331,517. (No model.)

To aZZ whom it may concern.-

Be it known that I, EDWIN D. BANGS, of Milwaukee, in the county ofMilwaukee, and in the State of Wisconsin, have invented certain new anduseful Improvements in Oil- Cups for Lubricating Journals, Shafting, andother Machinery; and I do hereby declare that the following is a full,clear, and exact description thereof.

My invention relates to oil-cups for lubricating journals, shafting, andother machinery; and it consists in certain peculiarities ofconstruction, as will be fully set forth hereinafter and subsequentlyclaimed.

In the drawings, Figure 1 is a side elevation of one form of my deviceshown attached to the box or bearing of a shaft or journal, the latterbeing represented in section. Fig. 2 is a vertical section on the line 22 of Fig. 1, drawn to an enlarged scale. Fig. 3 isa detail sectionalview on the line 3 3 of Fig. 2,

taken at right angles to the section-line of the preceding figure. Fig.4 is a detail section similar to Fig. 3, but illustrating another formof my present device with an eccentric-headed screw beneath; and Fig. 5is a detail view of said eccentric-headed screw.

A represents the cylinder of the cup, the upper part of which isexternally screwthreaded, as shown at a, for the reception of thecorrespondingly-screw-threaded depending circular flange b of the cap B,which latter has an upward-extending central neck C, having interiorscrew-threads for the reception of a correspondingly-screw-threaded plugD, having a central vertical perforation cl for the admission of airinto the cup above the oil, and below this neck the cap B is formed intoa central feed-hopper I, having a feed-opening i, to one side of whichis a vent 0, preferably diagonal, communicating with the interior of thecylinder A.

Thus far the construction of my present device does not differmaterially from that set forth in my prior application for patent,Serial No. 296,237, filed January 14:, 1889, except that I have nowshown the under side of the plug D hollowed out, as at cl, to increasethe area of the air-cushion formed above the oil in the cylinder A.

The bottom of the cylinder A is cast with a standard E, terminating in anib F, having exterior screw-threads, by means of which the cup issecured in the desired position, there being a channel ff extending froma depression c in the bottom of the cylinder down through the saidstandard and nib, and the said standard is provided with a taperedtransverse bore 9 for the reception of a plug G, tapered, as shown, tocorrespond to the bore g, and this plug G is provided with an angledchannel 71 h and in the form shown in Fig. 3, with another branch 7L2 tosaid channel for communication with the oil-channel f f and with theair-ventj' or vents j j, as the case may be, the said vents being boredthrough the standard E and communicating with the transverse bore g, andthe outer ends of said vents being enlarged and screwthreaded to receivethe screws j j, which have holes of less diameter than that of saidvents bored therethrough, so that the vents j j need not be of so minutea diameter as to render their boring diiiicult, and at the same time thefine holes in the screws will serve to admit just the requisite amountof of air needed and also serve to keep out the dirt. The large end ofthe plug G is preferably reduced, as shown at g, and hence oifsetted,continuing in a squared shank g of less diameter and terminating in ascrew threaded end The small end of said plug is reduced or offsetted,as shown at g and then again reduced and terminated in ascrewthreadedbolt 9 and when the plug G is in place within the bore 9 of the standardE a fiat spiral spring 9 is slipped on around the ofiset portion gagainst the end of the plug and the standard, (to take up any slackocca' sioned by wear,) and then a nut g is screwed on the bolt g againstthe said spring and a lock-nut g screwed on against the nut 9 as shown.

Secured to the outside of the cylinder Ais a frame K with two projectingbracket-arms 7a 7.2, whose ends are perforated to receive the ends of arod K and having screw-threads formed thereon and retained in positionby nuts 70' 7c.

M is a feed-lever having in its upper end a slot on by which it issuspended from the said rod K, therebeing a spring L and washer L oneach-side of the said lever surrounding the said rod K. Below this firstslot m and at right angles thereto the said lever M is provided withanother slot on, which receives the squared shank g on the adjacent endof the plug G, next to which is placed a washer g and against this isscrewed (on the end 9 a nut g thus insuring a secure connection betweenthe plug G and feed-lever M.

In Fig. 1 I show, as stated, my improved cup applied to the box orhearing of a shaft or journal, the nib F being screwed into the cap Nofsaid boX and the shaft or journal 0 being provided with a screw-threadedsocket 0 for the reception of a screw P, having a cam-shaped head p,said screw P being adj usted to the desired depth in said socket 0 andthen looked with a lock-nut n, the said head 19 being in line with thelower end of the feed-lever M, so that as the said shaft or journalrevolves the head of the screw P will strike and move the lower end ofthe feedlever M, and thus open the port or channel h or 71 (dependingupon which way the said shaft is revolving) by bringing it in line withthe channel f in the base of the cylinder A, andpermitting this channelh or it and its angled continuation h to become filled with oil, andthen as the lower end of the lever M is released from contact with thesaid screw-head p the springs L L will instantly bring said lever M toits original perpendicular position, thereby bringing the part h of saidchannel in line with the part f of the channel in the standard E and nibF and the said channel branches h 7L2 in line with the air-vents j 3'thereby enabling the oil which was in the said channel h or 71 h to dropdown and out through the channel f to the point to be lubricated, thisaction being repeated with every revolution of the said shaft orjournal, and as the part h of the channel in the plug G must necessarilybe against some closed part of the wallof the bore 9 when either thebranch hor h is taking oilfrom thecylinder, (through the upper part .cfof the channel leading from the bottom of the cylinder A,) .it followsthat the oil cannot be fed out through the lower part of the channel funtil the part it of the plug-channel is restored to its normalposition, (shown in Fig. 3,) with the channel branches h h incommunication with the airvents j j so that the feeding is entirelyautomatic and dependent upon the operation of the machinery,and hence nooil can be fed while the machinery is at rest, and therefore there is nopossible waste of oil.

The object of the described adjustment of the screw P is to regulate thefeed, as required, by increasing or decreasing the time that the lowerend of the feed-lever is in con tact with the cam-head of the screw, andthus increasing or decreasing the stroke of said feed-lever, and hencethe branch h or 7L of the plug-channel will be wholly or partly inregister with the channel f above and a greater or less quantity of oilfed to the plug-channel at each revolution in consequence. The slotsmand m in thefeed-lever are made longitudinally (or vertically).ofconsiderable length to permit of the necessary adjustment of the saidlever, as when there is considerable distance between the oil-cylinderand the camheaded screw in the shaft or journal beneath, and in view ofthis adjustment of the feedlever my device will be equally operative ifthe part which the lower end of said feed-lever engages with is a fixedone instead of an adjustable screw, as described, the ad ustment of thefeed-lever being only the work of a moment, the nut 9 being loosened forthis purpose and then retightened.

In Fig. 4 I show the channel 77, in the plug G as being provided withonly a single branch h and the standard E consequently having only asingle air-vent j in communication therewith. This form of oil-cup isespecially designed for use inconnection with the guides for thecross-head of a locomotive or other engine, to which guides the nibs oftwo of these 1 oil-cups are secured, and beneath each oil-cup thecross-head Q is provided with a cam-head 1 screw R, (in this instanceprojecting hor zontally, asindicatedbest'in Fig. 5,) the cam-head r ofthis form of screw differing, as shown in Figs. 4 and 5, from the formshown in Fig. 1, but the said screw being capable of turning around tovary the length of contact between its head and the lower end of thefeed-lever above for precisely the same purpose as that set forth inconnection with the other form.

As less oil is needed to lubricate a cross-head than a shaft or journalin this form, the cup feeds only with every other movement of thecross-headthat is, with every forward stroke only or every return strokeonly, as the case may be.

The screw R is provided with a lock-nut n to hold it firmly in the.desired position after adjustment, which adj ustment is easilyaccomcomplished by means of the squared end 6" on the cam-head. V

I-Iavingthus described my invention, what I claim as new, and desire tosecure by Let ters Patent, is r.

1. In an oil-cup, the combination,with the oil-cylinder and its standardprovided with an oil-channel and a transverse bore, of a plug fittedinsaid bore and provided with an angled channel the end openings of whichare adapted to be brought. into register with the said oil-channel inthe standard alternately above and below the plug, and aspring-controlled feed-lever suspended from said oil-cup and connectedto said plug, substantially as set forth.

2. In an oil-cup, the combination, with the oil-cylinder and itsstandard provided with an oil-channel, air-Vent, and a transverse bore,of a plug fitted in said bore and having openings adapted to be broughtinto register-with said oil-channel and air-vent, a feed-lever suspendedfrom said cylinder and connected to said plug and adapted to be movedand to thereby turn said plug, and springs for restoring said feed-leverto its normal position after each movement thereof, substantially as setforth.

3. In an oil-cup, the combination, with the oil-cylinder and itsstandard provided with an oil-channel and transverse bore of a plugfitted in said bore and having openings adapted to be brought intoregister with said oilchannel, a frame projecting from said cylinder andcarrying a transverse rod, with a pair of springs mounted thereon, and afeedlever provided with longitudinal slots in its upper end andsuspended from said rod between the said springs, said rod passingthrough its upper slot and one end of said plug passing through itslower slot and ad justably secured thereto by a lock-nut, substantiallyas set forth.

4. The combination of an oil-cup and its standard provided with anoil-channel and transverse bore, a plug fitted in said bore and havingopenings adapted to be brought into register with said oil-channel, aspring-controlled feed-leversnspended from said oil-cup and connected tosaid plug, and a contact device secured to the shaft or other movingpart of the machinery beneath the oil-cup and adapted to impinge againstthe free end of the feed-lever and cause it to turn said plug,substantially as set forth.

In testimony that I claim the foregoing I have hereunto set my hand, atMilwaukee, in the county of Milwaukee and State of Visconsin, in thepresence of two Witnesses.

EDWIN D. BANGS.

Witnesses:

ll. G. UNDERWOOD, WM. KLUG.

